<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<script type="text/javascript">
			var a=6500
			var b=500
			var c=5000
			var d=0.03
			document.write("实际收入=")
			document.write((a-b)-(a-c-b)*d)
		</script>
	</body>
</html>
